7997079749568 has 224 divisors, whose sum is σ = 26044470810624. Its totient is φ = 2108901408768.

The previous prime is 7997079749563. The next prime is 7997079749587. The reversal of 7997079749568 is 8659479707997.

It is a tau number, because it is divible by the number of its divisors (224).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7997079749563) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 235627896 + ... + 235661832.

It is an arithmetic number, because the mean of its divisors is an integer number (116269958976).

Almost surely, 2^{7997079749568} is an apocalyptic number.

7997079749568 is a gapful number since it is divisible by the number (78) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7997079749568, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13022235405312).

7997079749568 is an abundant number, since it is smaller than the sum of its proper divisors (18047391061056).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

7997079749568 is a wasteful number, since it uses less digits than its factorization.

7997079749568 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47459 (or 47449 counting only the distinct ones).

The product of its (nonzero) digits is 15122842560, while the sum is 87.

The spelling of 7997079749568 in words is "seven trillion, nine hundred ninety-seven billion, seventy-nine million, seven hundred forty-nine thousand, five hundred sixty-eight".